Plating Processes Plate Heat Exchanger www.hisaka-asia.com HISAKAWORKS S.E.A SDN BHD HISAKAWORKS SINGAPORE PTE LTD (Sales Office) Company No. 671059-K (South East Asia Headquarters) No 2, Jalan TP 2, Taman Perindustrian SIME UEP, 47600 Subang, Selangor Darul Ehsan, Malaysia Tel : +603 5880 4185 Fax : +603 8081 7185 Email : [email protected] No. 18, Boon Lay Way, #02-118 Trade Hub 21 Singapore 609966 Tel : +65 6897 8489 Fax : +65 6686 4579 Email : [email protected] HISAKA WORKS CO., LTD PT HISAKAWORKS INDONESIA (Sales Office) Kompleks Intercon Plaza Block D8-9, Jl. Meruya Ilir Raya, Taman Kebun Jeruk. Jakarta Barat 11630, Indonesia Tel : +62 021 5890 1302 (Hunting) +62 021 586 0158, +68 12 8189 1880 Fax : +62 021 530 4380, +62 021 530 4885 Email : [email protected] OSAKA : 2-1-48, Higashi-konoike-cho Higashi-Osaka, Osaka, 578-0973, Japan Tel : +81 72 966 9600 Fax : +81 33 562 2759 HISAKA – Delivering the latest plate technology to the world TOKYO : NTC Building 1-11-12, (Vietnam Representative Office) Kyobashi Chuo-Ku, Tokyo, 104-0031, Japan HeatHISAVINA Exchanger Division Hoang Dan Building, 47-49, Hoang Sa Street, Tel : +81 3 5250 0760 Da Kao Ward, District 1, Ho Chi Minh City, Vietnam Fax :Sales +81Department 3 3362 2759 Tel : +84 8 3910 7355 Osaka Sales Section : 2-1-48 Higashi-konoike-cho Higashi-Osaka City Osaka 578-0973 Japan Fax : +84 8 3910 7356 TEL: +81-72-966-9601 Email : [email protected] HISAKAWORKS THAILAND CO., LTD. Fax: +81-72-966-9602 BANGKOK (Sales Tokyo SalesOffice) Section :: KYOBASHI OM BLDG. 1-19-8 Kyobashi, Chuo-ku, Tokyo 104-0031 Japan 16 Soi Onnut 62, Kwang Suanluang, The Heat Exchanger Division of HISAKA WORKS, LTD. HISAKA WORKS, LTD. has acquired TEL: +81-3-5250-0760 Fax: +81-3-3562-2759 HISAPINO Representative has(Philippines acquired the ISO9001 certification forOffice) its quality the ISO14001 certification for its Khet Suanluang, Bangkok, 10250 Thailand system under whichBusiness all products, environmental management system. One Globalmanagement Place, 20th Floor, Office Center, Tel : +66 2704 6037 / URL: +66http://www.hisaka.co.jp/phe/ 2704 6038 plate heat exchangers, are subject to. 25th Streetstarting & 5thwith Avenue, Bonifacio Global City, Fax : +66 2704 6036 1632, Philippines Unauthorized use, reproduction, duplication, or alteration of this document is strictly prohibited. It shall be notedTaguig that the overviews and specifications, etc., listed in this catalog are subject to change without prior notice. Email : [email protected] Tel : +632 224 4129 Distributor Fax : +632 224 4130 RAYONG (Service Center) : Email : [email protected] 300/118, Moo 1, Tambol Tasit, Amphoe Pluakdaeng, Rayong 21140 Thailand Tel : +66 3301 2088 Fax : +66 3301 2089 Email : [email protected] HISAKA WORKS, LTD. All images and concept design Copyright © 2015 Hisakaworks S.E.A. Sdn. Bhd.. All Rights Reserved. ELP27042015 ElectroPlating.indd2-3 4/27/20153:39:07PM Plating Processes and HISAKA Plate Heat Exchanger Plating is a crucial modern surface covering technology in which a metal is deposited on a conductive surface. Plating places an important role in: * Decorating object * Corrosion and degradation prevention * Hardening object * Alter conductivity * Minimise friction Therefore, plating can be used in various industries, ranging from: i. Common household items and accessories ii. Automobiles iii. Computers and communication devices iv. Precision instruments v. Aerospace hardware However, it is crucial to note that the plating materials used in plating process are extremely corrosive as the metals are either dissolved electrically or chemically. Therefore, plating equipment requires to high corrosion resistance in order to meet the production requirements. HISAKA Plates Heat Exchanger is ideal for plating processes because of: i. High corrosion resistance ii. Excellent heat exchange efficiency iii. Accurate temperature control iv. Enables high adjustment precision v. Lightweight, compact and ease of maintenance HISAKA WORKS is a comprehensive and integrated manufacturer of plate heat exchangers having the most advanced production facilities. Overview of HISAKA WORKS Konoike Plant 2 ElectroPlating.indd2-3 3 4/27/20153:39:08PM HISAKA Plate Heat Exchanger Structure of a Plate Heat Exchanger (PHE) Plate heat exchangers (PHE) plates: - Pressed thin metal plates that have convex and concave wave patterns (herringbone patterns) - Made of corrosion resistant materials, such as stainless steel or titanium - Perimeter of the plates is sealed with synthetic rubber gaskets (slit in or glue on method) Advantages of Plate Heat Exchangers (PHE) - Suspended perfectly on both upper and lower guide bars - Fastened and compressed by a fixed and moving frame Mechanisms: * Counter current flow of high temperature fluid and low temperature fluid flowing against each plates. This phenomenon ensures heat transfer to take place. * Gaskets ensure that the flowing fluids do not intermix. Structure of a Plate Heat Exchanger (PHE) and Flow of Fluids D Plate A Plate Upper Guide Bar B Plate E Frame 1. High-Performance - Pressed - moulded herringbone patterns enhance heat conduction performance (heat transfer coefficient), hence able to reduce heat conduction surface area. 2. Lightweight and Compact - Compressed thin heat transferring plates - Limited fluid capacity - Smaller heat transferring surface area ➞ This realizes reduction in installation space, making installation and maintenance easier Installation Area Guide Bar Support 3. Quick Start - Up - Limited fluid capacity per unit allows quick operation start up, and also possible to correspond to changes in operating conditions with high precision. 4. Excellent Maintainability - Assembly and disassembly are made convenient by simply removing the fastening bolts - Maintenance are thereby made easy, even for visual inspections and cleaning Rubber Boots 5. Easy Modification of Capabilities - Flexibility in modifying the heat transferring surface area by simply increasing or decreasing the number of plates E Plate Lower Guide Bar S Frame Fastening Bolts/Nuts Flow Path Configuration High Temperature Side Input Low Temperature Side Output High Temperature Side Output Low Temperature Side Input Frontal View Side View The fluid flows alternately through the flow path created between each plate and forms a countercurrent of the high temperature fluid and the low temperature fluid between every other plate to perform the heat exchange. 4 ElectroPlating.indd4-5 5 4/27/20153:39:09PM PLATING PROCESSES Bath temperature used during plating process has to be constant in order to prevent plating defects such as low gloss, adherence inconsistencies, and uneven color distribution. Corrugated tubes (material: lead) of highly corrosion - resistant materials, electrical heaters, jackets, shell and tube heat exchangers (material: stainless steel, carbide, titanium and etc) are commonly used to control the temperature of the plating bath. Reasons being are as follow: 1. Capacities are insufficient for large plating volumes, along with high heat generation 2. High heat transfer capacities require the system to increase in size and installation space 3. Larger unit of highly corrosion - resistant heat exchanger would translate to increase production cost and installation cost 4. Larger volume capacity then translate to difficulties in quality control, especially in terms of temperature control Plate Heat Exchangers (PHE) are more ideal because of the following reasons: 1. PHE has the same heat transfer capacities 2. PHE is lightweight (only 1/3 of the weight of shell and tube exchanger) and compact (only 1/4 of the installation space required) 3. PHE is more economical even with the installation of highly corrosion - resistant materials 4. PHE offers great flexibility (and hence quality control) to control temperature of the plating tank due to lesser input volume of plating liquid required 5. PHE also enables quick machine activation due to lesser fluid volume involved; which in turns greatly reduce the operation time and ultimately save more on operating cost Example of Application Cooling Water Plating Tank Processes Degreasing Rinse Acid Dipping Electrolytic Degreasing Acid Activating Plating Drying Plate heat exchangers are used to cool the electrolytic solution by safeguarding the heat generated from the generation of currents lower than a certain temperature. Plate Heat Exchangers for the Plating Industry Chrome Plating Chrome plating is a finishing treatment on a metal surface with either the usage of electrolytic deposition of chromium anhydride (sargant bath) or fluorinated chromic acid (fluoride bath) to: 1. Improve decorativeness 2. Increase corrosion 3. Increase wear resistance However, when chromic acids are concerned, highly corrosion - resistant plate and gasket materials are needed for optimal functionality of the heat exchanger. Plate Material *) · Chromic Anhydride (Sargent Bath) Plate: TP270 Gasket: Fluororubber (EPDM application) · Fluorinated chromic acid (Fluoride Bath) Plate: SUS317L Gasket: Fluororubber (EPDM application) As fluorinated chromic acid which is highly corrosive in relation to metal is contained, it is expected that the corrosion resistance life of the plates will be shorter than in ordinary applications. Sulfuric Acid Copper Plating Sulphuric acid copper plating is essential in microelectronic industry where electronic components are inserted into printed circuit boards (PCB) and soldered to pads on the opposite side either by manual assembly or by automated insertion mount machines. Sulphuric acid also acts as an electrolyte to facilitate plastic plating processes via strike plating method. The plate material recommended for this plating process is titanium, as to prevent electrolytic corrosions. Plate Material *) Plate: TP270 Gasket: EPDM Zinc plating is the most reliable, effective and economical preventative measure of corrosion and rust by forming a barrier and acting as sacrificial anode when the barrier is damaged. Zinc plating can be done in either alkaline environment (zincate bath) or acidic environment (acidic bath). However, since plating conducted under acid environment is more effective, titanium plates are recommended to prevent electrolytic corrosion. Gasket: EPDM Similarly, nickel plating is also used to: 1. Improve decorativeness 2. Enhance corrosion resistance 3. Improve wear resistance Plate heat exchanger functions in electrolytic plating which precipitates metal nickel by injecting currents in the electrolyte containing nickel ions. Plate: TP270 Gasket: EPDM · Alkali Bath · Acidic Zinc Bath Plate: TP270 Tin plating has been used extensively in food industry due to its non-toxic, ductile and corrosion resistant properties. Consequently, it is used to protect both ferrous (eg: copper and nickel) and other nonferrous surface metals. Similarly, tin plating can be conducted in other alkaline or acidic environment, yet, it works best under acidic conditions. Therefore, titanium plate is recommended. Plate Material *) · Acid Bath Plate Material *) · Zincate Bath Plate: SUS316 Nickel Plating Tin Plating Zinc Plating Gasket: EPDM Plate: SUS316 Gasket: EPDM Plate Material *) Plate: TP270 Gasket: EPDM *) A commonly used material. The material will differ depending on operating requirements. 6 ElectroPlating.indd6-7 7 4/27/20153:39:10PM
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